Phase shift in an atom interferometer induced by the additional laser lines of a Raman laser generated by modulation

被引：62

作者：

Carraz, Olivier ^{[1
]}

Charriere, Renee ^{[1
]}

Cadoret, Malo ^{[1
]}

Zahzam, Nassim ^{[1
]}

Bidel, Yannick ^{[1
]}

Bresson, Alexandre ^{[1
]}

机构：

[1] Off Natl Etud & Rech Aerosp, F-91123 Palaiseau, France

来源：

PHYSICAL REVIEW A | 2012年 / 86卷 / 03期

关键词：

Atom lasers - Interferometers - Gravimeters - Atoms;

D O I：

10.1103/PhysRevA.86.033605

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The use of a Raman laser generated by modulation for a light-pulse atom interferometer allows for a laser system that is compact and robust. However, the additional laser frequencies generated can perturb the atom interferometer. In this article, we present a precise calculation of the phase shift induced by the additional laser frequencies. The model is validated by comparison with experimental measurements on an atom gravimeter. The uncertainty of the phase-shift determination limits the accuracy of our compact gravimeter to 8 x 10(-8) m/s(2). We show that it is possible to reduce this inaccuracy considerably with a better control of experimental parameters or with particular interferometer configurations.

引用

页数：7

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